# CN4027M00020001

**huaxindianzi** · Crystals · SMD2016-4P

CN4027M00020001 from huaxindianzi, in a SMD2016-4P. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | XTAL1 | passive | Crystal terminal for the 27.000 MHz fundamental AT-cut resonator with 20 pF load capacitance, marked as pin 1 (pad with square corner) on the package drawing. |
| 2 | GND | power_in | Ground, labeled GND on the top-view crystal connection drawing (pin 2 has the chamfered pad corner). |
| 3 | XTAL2 | passive | Second crystal terminal for the 27.000 MHz resonator, opposite pin 1 on the package drawing. |
| 4 | GND | power_in | Ground, labeled GND on the top-view crystal connection drawing. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | huaxindianzi |
| Package | SMD2016-4P |
| Category | Crystals, Oscillators, Resonators |
| Pins | 4 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Nominal Frequency | F0 |  | 27 |  | MHz |  | 4 |
| Frequency Tolerance |  | -10 |  | 10 | ppm | At 25℃±℃ | 4 |
| Temperature frequency deviation (labelled 'Equivalent Series Resistance' on page as printed) |  | -30 |  | 30 | ppm |  | 4 |
| Operating Temperature | TC | -30 |  | 85 | ℃ |  | 4 |
| Drive Level | DL | 1 |  | 350 | μW |  | 4 |
| Load Capacitance | CL |  | 20 |  | pF |  | 4 |
| Resonant resistance | RR |  |  | 60 | Ω |  | 4 |
| Direct capacitance | C0 |  |  | 3 | pF |  | 4 |
| Insulation resistance | IR | 500 |  |  | MΩ | At DC 100V | 4 |
| Parasitic attenuation | SPDB |  |  | -3 | dB | -1000ppm～6500ppm | 4 |
| Aging rate |  | -2 |  | 2 | ppm | 1st year max | 4 |
| Storage temperature range |  | -55 |  | 125 | ℃ |  | 4 |

## CAD (KiCad official)

- Symbol: `CN4027M00020001`
- Footprint: `Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm`
- 3D model: SMD2016-4P (KiCad packages3D, STEP)
- 3D model files: `cn4027m00020001-etched.step` / `cn4027m00020001-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cn4027m00020001.step` / `cn4027m00020001.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [huaxindianzi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590905767820279808) (10 pp, sha256 `a4fb0009c9359fae`, retrieved 2026-10-15, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/cn4027m00020001-datasheet.pdf)